﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp.装饰器
{
    /// <summary>
    /// 1. 基础组件接口 - 抽象组件
    /// </summary>
    public interface IOrder
    {
        double CalculateTotal();
    }
}
